2012/03/23 by C. Praetorius, Christian Praetorius, Praetorius, C. +8
Chemistry · Physics and Astronomy · #FOS: Physical sciences #Inorganic Chemistry and Materials #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Nuclear physics research studies #Rare-earth and actinide compounds #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.mes-hall #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.1203.5272
11 pages, 4 figures
arxiv created 2012/03/23 · openalex publication_date 2012/03/23 · arxiv updated 2012/03/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We use x-ray absorption and magnetic circular dichroism to study electronic configuration and local susceptibility of CePt5/Pt(111) surface alloys from well above to well below the impurity Kondo temperature. The anisotropic paramagnetic response is governed by the hexagonal crystal field and ferromagnetic correlations, with modified parameters for Ce moments residing next to the alloy surface. Quantitative XMCD evaluations provide direct evidence of Kondo screening of both spin and orbital 4f moments. Magnetic signatures of coherence are not apparent for T >= 13 K.